Improvement in hydraulic engines



NrrED STATES WILLIAM L. SMITH, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN HYDRAULIC ENGINES.

Specification forming part of Letters Patent No. 161,068, dated March23, 1875 application filed J anuaryBO, 1875.

To all whom it may concern:

Be it known that 1, WILLIAM LAFAYETTE SMITH, of San Francisco, in thecounty of San Francisco and State of California, have invented anImprovement in Hydraulic Engines and I do hereby declare that thefollowing is a full, clear, and exact description of in the employmentof a weighted pendulum having an auxiliary arm attached to a rockshaftwhich carries the pendulum. The rockshaft is sustained upon a suitableframe, and transverse beams are placed across each end, which carryvertical pump-rods operating in the pump-barrels, which extend down intothe pool or tank beneath the frame of the machine, so that the water maybe raised to a sufficient height to be distributed by means of troughsfor irrigating, or be directed upon a wheel for driving light machinery.It also relates to improved means for arresting the action of thependulum.

Referring to the drawings for a morecomplete explanation of myinvention, Figure 1 is a plan; Fig. 2, a side elevation.

A represents a rectangular frame, upon the top of which is placed arock-shaft, B, the bearings of which operate in suitable boxes 0 0. Oneor more transverse beams, D, are secured to the rock-shaft, andpump-rods E are attached to each end, which connect with the I piston ofthe pump F, which pumps extend down into the water intended to beraised. To the rock-shaft is attached a rigid arm, G,

projecting upwardly a sufficient height, to the end of which isconnected a rope or cable, G, by means of which, and a rope or cableattached to the pendulum, mobility is given to the said pendulum, andthe pumps operated.

The water as it is raised in this construction of pumps flows over thetops of the cylinders H, which are of short construction, as shown,whereby the friction incident to the raising of the water isconsiderably lessened, as the tops of the cylinder are on a plane, ornearly so with that of the troughs or conductors I I, by whichconductors the water may be directed to any part of a field, or be madeto fall upon a wheel, J, at the foot of the frame to drive simplemachinery, in which latter case it may be used over and over again. Nogreat advantage, however, is claimed in raising water by the device forpropelling machinery. Its utility consists mainly in the fact of itsadaptation to locations where both wood and water are scarce, and whereno fall or head of water can be had.

In order to stop the vibration of the pendulum readily I employ aspring-rope, K, and a spring-bar, L, which extend from one post of theframe to the other at the rear end of the machine, which arrests themotion of the pendulum, against which it strikes, at the will of theoperator.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is.

In combination with the frame-work of a hydraulic engine, operated bymeans of a weighted pendulum, as described, the spring cable or rope K,and spring-bar L, as and for the purposes specified.

In witness whereof I have hereunto set my hand and seal.

' WM. L. SMITH.

D. W. MURPHY, C. W. M. SMITH.

